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Stepper motor driver which good _ automation stepper motor

by:Zhenyu     2020-10-26
Stepper motor drive power output circuit with frequency converter in the form of:

the main circuit of stepper motor driver and switch power supply circuit. Stepper motor drive power ( Refers to the object of the work done in a unit time) The form of output circuit with inverter main circuit is similar. Each way by two IGBT tubes do push-pull output, also reverse parallel diode on the tube, to provide the access of the reverse current, thus to ensure the safety of the IGBT tubes. Overcurrent protection of IGBT tubes signal made by AR1, BR1 two resistance, the two IGBT tube resistance to the current signal into voltage signal, the level protection circuit after processing, into the single chip microcomputer. Switching power supply + 5 v output, as the power of the single chip microcomputer. In addition, + 5 v, - 5 v also as a protection circuit of double circuit power supply. All the way to + 15 v power supply, the PIC and PT1 into four road 15 v power supply, for four road driving circuit.



in the PC and PLC in industrial control system, especially in the control of various mechanical equipment, PLC, touch screen, often see stepper motor drives, stepper motor or stepper motor drives, the combination of the stepper motor applications. Stepper motor driver in order to further improve the drive systems of high frequency response, frequency boost power driver interface can be used up. The interface provided by the winding voltage and the operating frequency of the motor into linear relationship. Its main circuit is actually a switch regulated power supply, use of frequency - Voltage converter, drive pulse frequency conversion into dc level, and the level to control switch regulated power supply input, this constitutes a frequency feedback power driver interface. For step motor and stepping motor, because of its simple structure, in principle is not too complicated, see material, combined with the application, will understand. But the structure and the circuit of the motor drive, limited to various conditions, it will be difficult to know its & other; True colors & throughout; .



drive power and the terminal signal source. Stepper motor is a kind of induction motor, its working principle is the use of electronic circuit, direct current (dc) into time-sharing power supply, multiphase sequential control current, in this current for stepper motor power supply, step motor to work properly, is time-sharing power supply for step motor drive, multiphase timing controller. By the power board to + 15 v power supply, by NE555 the oscillation time base circuit, output switch transformer PT1 four secondary windings four separate sets of 15 v dc voltage, power supply for driving IC; Stepper motor drive pulse driving circuit and step motor working current setting circuit, etc.



step motor driving a stepper motor can't directly to the power frequency ac or dc power supply work, and must use a dedicated driver, as shown in figure, it is controlled by pulse generating unit, power drive unit, protection unit, etc. Figure midpoint line surrounded by two units can be done with microcomputer control. Driver IC mining IS2110S dedicated driver chip ( Also known as micro circuit) , single-chip computer output four pulse signals, after processed by the input and gate 74 ls08 42 into four pieces of IS2110S drive circuit, the photoelectricity isolation and power ( Refers to the object of the work done in a unit time) After amplification, send inverter power circuit, the input step pulse to the step planetary gear motor; CPU circuit and control circuit diagram inside the terminal.



stepper motor drives are four pulse signals generated by single chip microcomputer, a follow-up circuit drive power output circuit, the driving of stepping planetary gear motor. The picture of the single chip microcomputer O/I when you are detailed mark, facilitate analysis principle and fault detection. Control terminal, except step level signal input pulse and direction, also provides stepper motor drives the fault signal output, for fault status display, etc.



One increasingly popular managerial tactic to improve problem-solving performance of electric motor suppliers is to increase the connectedness, or what academics call clustering, of the organization
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